Subscription Token Encryption for Cross-Platform Privacy Control
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Solution Overview
Problem
Existing systems fail to provide users with transparent and efficient control over their data privacy settings across the online ecosystem, leading to unauthorized access and misuse of sensitive information by unverified entities.
Innovation Solution
A data security system generates subscription tokens with encrypted user identifiers and attachment elements for eligible content platforms, allowing users to manage data privacy settings through a central platform, ensuring secure and cryptographically provable control over data access and usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a central data security system generates subscription tokens with encrypted user identifiers for multiple content platforms, then user privacy control and data security are improved, but system complexity and computational resources increase
Solution Approach 1:
The system divides user data access control into separate encrypted identifiers for different content platforms. Each platform receives only the encrypted user identifier specific to that platform, allowing independent verification without exposing other platforms' data. This segmentation enables fine-grained privacy control while distributing computational burden across multiple platforms rather than requiring a single complex centralized system.
Solution Approach 2:
The subscription token acts as an intermediary mechanism between users and content platforms. It contains encrypted user identifiers that platforms can verify without directly accessing user data. The token structure includes attachment elements for each platform, serving as a mediator that enables trustless data sharing while maintaining user privacy and controlling system complexity through standardized verification protocols.
2Reliability
If the system stores encrypted user identifiers for multiple content platforms, then user privacy protection is improved, but data storage requirements increase
Solution Approach 1:
Instead of storing complete user data profiles for all platforms, the system stores only encrypted user identifiers in the subscription token. Each identifier is platform-specific and encrypted, reducing the data quantity needed while maintaining privacy protection. The segmentation of identifiers by platform allows efficient storage and selective disclosure only when needed.
Solution Approach 2:
The system creates encrypted copies of user identifiers for each content platform rather than storing the original unencrypted data. These encrypted copies can be verified by platforms without revealing the actual user data. The copying approach with encryption provides privacy protection while minimizing storage requirements compared to storing complete data profiles.
3Ease of operation
If the system processes subscription token requests for multiple content platforms, then user control over data privacy is improved, but processing time and computational resources increase
Solution Approach 1:
The system pre-generates and stores encrypted user identifiers for multiple content platforms in advance within the subscription token structure. When a platform needs to verify user identity, it can quickly retrieve and verify the pre-computed encrypted identifier without requiring real-time cryptographic operations. This preliminary action reduces processing time during actual data access requests while maintaining comprehensive user control.
Solution Approach 2:
The system creates and stores encrypted copies of user identifiers for each platform in the subscription token, enabling fast verification. Instead of performing complex cryptographic operations during each data request, the system uses pre-computed encrypted identifiers that can be quickly verified. This copying approach with encryption maintains user control over privacy while significantly reducing real-time processing requirements.
Data Source
AI summary
This disclosure relates to data security and cryptography. In one aspect, a method includes receiving a request for a subscription token for a given user by a data security system from a publisher computing system of a publisher. The request includes user identification information provided to the publisher by the given user when subscribing to electronic content of the publisher. The data security system generates the subscription token which includes a set of data that includes a first encrypted user identifier generated by encrypting a first user identifier for the given user using an encryption key of the data security system, and, for each of one or more content platforms, an attachment element that includes a second encrypted user identifier generated by encrypting a second user identifier for the given user using an encryption key of the content platform and transmitting the subscription token to the publisher computing system.